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12_f5050eba-5dbf-4363-986d-a637a421770a - Northline Parts

Haldex KN20021 PP-1 Push-Pull Parking Brake Valve

SKU: NLT2T01160
$59.49 In Stock
$59.49
Sale price  $59.49 Regular price 
Ships for free in 2–4 business days.
Haldex KN20021 PP-1 push-pull parking/emergency brake dash valve for compatible air-brake systems.
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Compatible Models

We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.

Compatible equipment / model
Application Fitment Notes
Compatible heavy-duty air-brake systems Verify plumbing and pressure specifications before installation.

Product Overview

This manually operated valve controls the parking/emergency brake circuit from the dash. Haldex lists KN20021 as a PP-1 style push-pull valve with 1/8-inch NPT ports.

Replace a valve that leaks, will not stay in position, or no longer controls the parking brake correctly. Air-brake repairs should be verified for system compatibility before installation.

Key Features & Performance

  • PP-1 style push-pull parking brake valve
  • Haldex reference KN20021
  • Bulkhead dash mounting
  • 1/8-inch NPT ports

Common Reasons for Replacement

  • Air leakage from dash valve
  • Valve will not hold or release properly
  • Parking brake does not respond correctly to valve operation

Technical Specifications

  • Part Type: Parking / Emergency Brake Dash Valve
  • Ports: 1/8 in NPT
  • Approx. Pop Pressure: 35 ±10 psi
  • Mounting Hole: 7/8 in

OE / Reference Numbers

  • KN20021
  • H-30158
  • N20960
  • KN20903 (knob reference)

Frequently Asked Questions

How do I confirm compatibility? Confirm KN20021, port size, mounting and air-brake system configuration before ordering.

Is this an OEM part? This listing is for a replacement part. Brand names and OE/reference numbers are used to identify fitment unless the listing specifically states that the item is genuine OEM.

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